1. Socrates has the best explanation and I'll defer to his expertise. My experience has been variable. I never expect stay points but do provide the hotel with mine or my wife's MR number in my faxed confirmation and preference communications. IIRC, we've always gotten incidentals points/miles. I'll check the final accounting of the notations on our most recent invoice, from SNADP, which I still feel is in error (in our favor), and post back with any corrections.

2. Head over to biddingfortravel and spend some time on the PL bidding boards. You'll soon see the methodolgies for targeting a Marriott property in an area you wish to travel to. IME, the key is the start bid level and progression of bidding increments through the free re-bid zones. It does take time and work but we have a marked loyalty to Marriott and I wish to stay with them as often as is practicable, even on Priceline stays.

If evidence of our loyalty (MR points instead of miles, MR VISA, any elite status) helps us, even on a PL stay, so be it. Gifts are welcomed

Pat